Copper compounds of orthooxyazo dyestuffs and a process of making same.



lJNl'lEl) @TATES earns ora ion",

CARL JAGERSPACHER AND BERTHOLD worn, orB'AsEL, SWITZERLAND, AssmNoas'ro SOCIETY OF CHEMICAL INDUSTRY IN BASLE, I COPPERCOMPOUNDS F ORTHOOXYAZO DYES' EUFFS AND A YROCESS OFMAKING SAM-E.

No Drawing.

- Basel, Switzerland, have invented new Copper Compounds of ()rthooxyazo Dyestuffs and a Process of Making Same, oi: which the/following 1s a full,'clear, and exact specification.

In the United States application for Letters Patent Ser. No. 43413, filed August 3, 1915 is described the production of new, well defined copper compounds of ortho- Specification. 0t ietters Patent.

or assist, SWITZERLAND.

Patented Feb. at, 1am.

- Application filed October 7,1915. sex-intimates. v

sodium carbonate or 50(lllllllfllf0tfit0 "and the yellow green copper compound separated by filtration, pressed and dried, It dies wool from an acid bath, very equable green; yellow tints which are very fast a; washing" and to light. I

Example parts of the dyestuli' resultingfrom oithodia-zophenolsul'ldnic acid and benzoylacetone are dissolved in 400 parts. hot water and the thus obtained solution, it added at about 70 i. asolution oi 13 parts copper sulfate in parts water. The coloration of the originally .pure orange-red so lution turnsto grecn-browu. By addition 15 oxyazo dyestuffs, which are' soluble in waof common salt the copper rouipouiul is pretel. Ne have now found that the orthocipitated in -form of sandy browu-yellmv oxyazo dyestufls derived from a betacetoncrystals It yields on wool in an acid bath aldehyde derivative, in which an. alkyl orangedirown tints fast to washing and to alkyloxyand alkylamino group is substilight.

2o tuted. for the aldehydic hydrogen, that is to The following tabular exhibit relates to say which result from the combination of de- Several copper compounds obtainable acrivatives of orthodiazophenol or orthodiazocording to the new process:

'naphthol with the said betacetonaldchyde A derivatives, can also be transformed into new m p nd of e a mulling from l 25 copper compounds by their treatment with m mmdewame t imam? copper compounds as for instance copper fwwgnxqd" vnwoolsalts, copper oxid or copper hydroxid, pp W The copper compounds soluble in water thus lmeiyymmicmw U ,wmwenow obtained, from which the copper cannot be 1 Beuzoylaeelicesl l Orange-brown 30 precipitated by sodium carbonate, soda lye 35 and ammonia, possess the valuable property I 4 to dyethe animal fibers, as wool, silk and 4 leather, straw and woodbast directly in an acid bath vivid greenish yellow to orange- Slow 35 brown tints of, excellent fastness to washing 4 a to In 3 1V state! h y Funstitute 011 At, yl: .,ticauilid,. Green-yellow. yellow to brown powders which dissolve in l Bmwylmli concentrated sulfuric acid forming yellow to red-orange solutions. l I

49 Among the derivatives of betacetonalde- 1 hyde suitable to be employed as pa rent materials forthe preparation ofthe ortho azooxy L dyestuffs to be transferred into copper com- I 1 V pounds may be signalized the acetylacetic on .nmlm mmmle Orange.

45 ester,the benzoylacetic ester, the acet laco- A l l 9 tone, the benzoylacetono, the acetylacetic 1 mm, the benzoylacetic mud. l l

Example 1: 20 parts of the dyestuli resulting from the combination of orthodiazo- 50 phenolsulfonic acid with acetylaceticanilid (ire are dissolved in 500 parts water and to the thus obtained solution'is added, at a tem- What We claim is:

perature of 70 C. a solution of 13 parts 7 copper sulfate in about 50 parts water.

55 The freed sulfuric acid is neutralized with l. The described process for the manufacture of new copper compounds otorthooxyazo dyestufis, soluble in Water. consist ing in acting with copper compounds in a watery medium on the orthooxyazo dyestuffs derived from a betacetonaldehyde derivative in which an alkyl-, alkyloxyor alphylamino group is substituted for the aldehydic hydrogen.

2. The described process for the manufacture of new copper compounds of orthooxyazo dyestuffs, soluble in water, consisting in acting with copper compounds in a watery medium on the orthooxyazo dyestuifs resulting from the combination of an orthodiazophenol derivative with a betacetonaldehyde derivative in which an alkyl-, alkyloxyor alphylamino group is substituted for the aldehydic hydrogen.

3. As new products the described new copper compounds of -orthooxyazo dyestufi's, which are soluble in water, from which the copper cannot be precipitated with sodium carbonate, soda lye and ammal fibers, as wool, silk and leather, straw and wood-bust are dyed. according to the methods used for acid dyestufl's, greenishyellow to orange-brown tints showing without any further treatment a very good fastness to washing and to light.

In witness whereof we have hereunto signed our names this 11th day of September 1915, in the presence of two subscribing witnesses.

Dn. CARL JAGELSPACHER. Du. BER'll-IOLD W Ulll. Witnesses ARNOLD Zunan, Aanm'o BITTER. 

